(function webpackUniversalModuleDefinition(root, factory) {
  if (typeof exports === "object" && typeof module === "object")
    module.exports = factory();
  else if (typeof define === "function" && define.amd)
    define([], factory);
  else {
    var a = factory();
    for (var i in a) (typeof exports === "object" ? exports : root)[i] = a[i];
  }
})((typeof self !== "undefined" ? self : this), function() {
  return /******/ (function() { // webpackBootstrap
    /******/
    "use strict";
    var __webpack_exports__ = {};

    ;// CONCATENATED MODULE: ./contrib/copy-tex/katex2tex.js
// Set these to how you want inline and display math to be delimited.
    const defaultCopyDelimiters = {
      inline: ["$", "$"],
      // alternative: ['\(', '\)']
      display: ["$$", "$$"] // alternative: ['\[', '\]']

    }; // Replace .katex elements with their TeX source (<annotation> element).
// Modifies fragment in-place.  Useful for writing your own 'copy' handler,
// as in copy-tex.js.

    function katexReplaceWithTex(fragment, copyDelimiters) {
      if (copyDelimiters === void 0) {
        copyDelimiters = defaultCopyDelimiters;
      }

      // Remove .katex-html blocks that are preceded by .katex-mathml blocks
      // (which will get replaced below).
      const katexHtml = fragment.querySelectorAll(".katex-mathml + .katex-html");

      for (let i = 0; i < katexHtml.length; i++) {
        const element = katexHtml[i];

        if (element.remove) {
          element.remove();
        } else if (element.parentNode) {
          element.parentNode.removeChild(element);
        }
      } // Replace .katex-mathml elements with their annotation (TeX source)
      // descendant, with inline delimiters.

      const katexMathml = fragment.querySelectorAll(".katex-mathml");

      for (let i = 0; i < katexMathml.length; i++) {
        const element = katexMathml[i];
        const texSource = element.querySelector("annotation");

        if (texSource) {
          if (element.replaceWith) {
            element.replaceWith(texSource);
          } else if (element.parentNode) {
            element.parentNode.replaceChild(texSource, element);
          }

          texSource.innerHTML = copyDelimiters.inline[0] + texSource.innerHTML + copyDelimiters.inline[1];
        }
      } // Switch display math to display delimiters.

      const displays = fragment.querySelectorAll(".katex-display annotation");

      for (let i = 0; i < displays.length; i++) {
        const element = displays[i];
        element.innerHTML = copyDelimiters.display[0] + element.innerHTML.substr(copyDelimiters.inline[0].length, element.innerHTML.length - copyDelimiters.inline[0].length - copyDelimiters.inline[1].length) + copyDelimiters.display[1];
      }

      return fragment;
    }

    /* harmony default export */
    var katex2tex = (katexReplaceWithTex);
    ;// CONCATENATED MODULE: ./contrib/copy-tex/copy-tex.js
     // Return <div class="katex"> element containing node, or null if not found.

    function closestKatex(node) {
      // If node is a Text Node, for example, go up to containing Element,
      // where we can apply the `closest` method.
      const element = node instanceof Element ? node : node.parentElement;
      return element && element.closest(".katex");
    } // Global copy handler to modify behavior on/within .katex elements.

    document.addEventListener("copy", function(event) {
      const selection = window.getSelection();

      if (selection.isCollapsed || !event.clipboardData) {
        return; // default action OK if selection is empty or unchangeable
      }

      const clipboardData = event.clipboardData;
      const range = selection.getRangeAt(0); // When start point is within a formula, expand to entire formula.

      const startKatex = closestKatex(range.startContainer);

      if (startKatex) {
        range.setStartBefore(startKatex);
      } // Similarly, when end point is within a formula, expand to entire formula.

      const endKatex = closestKatex(range.endContainer);

      if (endKatex) {
        range.setEndAfter(endKatex);
      }

      const fragment = range.cloneContents();

      if (!fragment.querySelector(".katex-mathml")) {
        return; // default action OK if no .katex-mathml elements
      }

      const htmlContents = Array.prototype.map.call(fragment.childNodes, el => el instanceof Text ? el.textContent : el.outerHTML).join(""); // Preserve usual HTML copy/paste behavior.

      clipboardData.setData("text/html", htmlContents); // Rewrite plain-text version.

      clipboardData.setData("text/plain", katex2tex(fragment).textContent); // Prevent normal copy handling.

      event.preventDefault();
    });
    __webpack_exports__ = __webpack_exports__["default"];
    /******/
    return __webpack_exports__;
    /******/
  })()
    ;
});
